String cutter



Oct. 18, 1932. E, T N 1,883,831

STRING CUTTER Filed Oct. 12. 1931 We it Emil 1 Slrzzflan ATTORNEY Patented Oct. 18, 1932 EMIL H. 'S TRATTON, F BOISE, IDAHO STRING CUTTER Application :filed :Ootober 12, .1981. :Serial No. 568,458.

:Thi-s iIr-vention'relates :to cutters ifiorstring, cord iorxthe alike and is especially adapted for :use awrithistring unwound ifroma supply for I :the purpose of severing :the {string as desired or in suitable lengths and has for the primary rolij-ect, {the provision of --a device ;of :the above stated character which may be conveniently harried and operated within :a persons hand without interfering with 1the-usesof the hand do When wrapping :and tying :the :string about .an article :and therefore provides a convenilGIlt anediinnztomsevering the stringwafterlthe above described operation is completed.

Another-object of this invention is the provision of-means rforipassing the-string through the-ideviceiprovidingaaholderandguide there- ;for and which is adapted to automatically feed-the string outwardly therefirom during each sseveranoe ror cutting of the string, thus 7 6" positioningrtheendiofithe latter so that :it-may be easily grasped :Eor permitting (the person to :pull :the string through the device and from the supply taadesired length for wrappingandtyingiamarticle =With .these :and other obj cats in view, {this invention consists :in certain novel features of construction, combination and arrangementofpartsrtozbehereinafterymoredfullyadescribed and claimed.

For a complete understanding vof'my zinvention, reference :iszto [be had ate [the @following description and accompanying drawing, inwh-ioh Figure 1 is a perspecti=ve view illustrating .e.' a str ing-cutter constructed inaccordanceawith my invention.

Figure 2 is an end elevation illustrating the same.

Figure 35s a sectional :view taken on the Figure 4is a similar view showing theparts positioned 'inqtheract of severing the String.

Figure I5 lisasectional viewtaken on the I liner-{5. 1% Figure 2.

Figure 6 is .a sectional view similar to .Figureffi except showing-the p arts positioned ,in the :act of severing the string.

Figure ,7 is a sectional view ctaken on the Figure 18 is va sectional view taken on the 'line 8' 8:of Eigureed.

Eigure .9 isla detail view illustrating .a ,latchlelement. I

,Referring in detail to vthe drawing, the numeral l indicates a casing includingsec- :tions2 andfihauing telescopicrelatiom One endof the section-3 is fullyopened topermit oneend of alknife supporting plate lto exten doutwardlyof the casing 1. The plate 4v is detachablysecurediinlthe section 3 and'has its exposed portion .or :that portion which is arranged outwardly of the casing ibent angu- Ilarily to provideafknife attaehingearfi which inclines inwardly toward vone .end of .the eas- .ing 1 and has ,detachably secured thereto a Eknifelblade 6 bya fastener 17. An adjusting screw .8 is carried by the ear 5 and bears against the knife blade 6 for the purpose of varying the-tension .of-the .kniielblade against a working plate 9.:secured ,t-o oneend of the .section2 of the casing. The working ,plate is provided. with .an opening 10 to permit !a string illto.extendtherethrough after passing through ithecasing as shown in Figure land coming from .a iSllllJELblG supply. A Ikni'fe fblade .12 is detachably secured to the wear plateat Ithe qppos'iteside of vthe opening 11 from the'knife'blade 6 and 'isadapted-lto ,cooperate with :the latter in severing the string when said blades are moved toward or, in

engagement with each other.

wAn iarbor or frame 13 is mounted in the section 1'2 of the casing 1 and is provided with sleeves 1A to slidably receive posts 15 carried by vthe knife plate The posts15 extend through the sleeves and have threaded .in their ends headed ,-'fastenjers l6 t,o,pro ividestops forlimiting the movement of the sections 2 .and.,3 away fromeac'h other. The sections.2:and 3 :ELIIB normally urged apartby leaf springs 5L7 bearing thereaga'inst and carried by the arbor or frame as shown at 18. The urging of the section 3 away .from the section 2 of the casing normally ,posi- .tions the knife blade 6 away from the 'knife blade 12 and also positions the knife blade ,6 was to uncover theopening 11 sothat the string may be pulled through the device as desired.

The opposite end of the casing 1 from the knife blade is provided with an opening to the casing so as to permit the string to pass therethrough and the inner or adjacent ends of the tubes are relatively spaced and cut away as shown at 21 to provide spaces for receiving feed rollers 22 and 23 so that the serrated peripheries thereof may engage the string when passing from the tube 20 to the tube 19. The feed roller 23 is mounted on the frame or arbor so as to have rotary and a limited sliding movement and is normally urged in the direction of the string by a spring 23. The feed roller 22 is journalled to the arbor or frame and the axle thereof is provided with a pinion 24: meshing with a gear of a train of gears 25 carried by the frame 13.

An arm 26 is secured to the knife plate 4: and has pivotally and slidably connected thereto a ratchet arm 27 which in turn has one end pivotally and slidably mounted on the axle of one of the gears of the train of gears 25 and the other end of the arm 27 carries a spring pressed pawl 28 engaging the teeth of one of the gears of the train of gears so that during the movement of the sections 2 and 3 toward each other for the purpose of severing the string, the arm 27 ratchets relative to the train of gears and on the return of the sections 2 and 3 of the casing to their normal position by the influence of the springs 17, the arm 27 imparts movement to the train of gears which in turn rotates the feed roller 22 causing the string to be fed outwardly of the casing, X posing the free end so that it may be readily grasped by a person for drawing the string through the device and from the supply to a desired length for wrapping and tying an article.

A pivoted pawl 29 is carried by the frame or arbor and operates through a slot 30 in the tube 20 to engage the string and is urged in engagement therewith by a spring 31. The pawl 29 is so arranged as to permit the string to be fed outwardly of the casing freely by the feed roller 22 but a reverse movement of the string will be retarded or stopped by the pawl 29 gripping the same within the tube.

In operation, a string from a supply is threaded through the device and the device is then held within a persons hand while the string is drawn therethrough and wrapped and tied about an article and after the stated operation is complete, the person squeezes or moves the sections 2 and 3 of the casing toward each other causing the knife blades to sever the string and as the squeezing action upon the sections 2 and 3 is released, the

spring 17 returns the sections to their initial position which imparts movement to the train of gears, rotating the feed roller and thereby feeding the end of the string out of the casing so that it may be readily grasped for further use. The device is to be manufactured on a scale wherein it will be compact so that it can be conveniently carried and operated within a persons hand and will not interfere with the use of the hand during the wrapping and tying of an article. The device thus carried and operated always maintains the end of the string readily accessible for use by the person employing the string to wrap and tie articles.

While I have shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement of parts may be made without departing from the spirit and scope of my invention, as claimed. v

Having thus described my invention, what I claim is: p

1. A string cutter comprising a portable holder including telescopic sections, a frame in one of said sections, means slidably connectin g the other section to said frame, tension means between the last named section and the frame, knives carried by said sections, guide tubes in the frame to have a string from a supply threaded therethrough and having their inner ends relatively spaced, feed rollers engaging the string between the inner ends of the tubes, and a pawl and ratchet mechanism between one of the feed rollers and one of the sections to impart rotation to the last named feed roller to cause the string to be fed outwardly of the holder after each severance of the string by the blades.

2. A string cutter comprising a portable holder including telescopic sections, a frame in one of said sections, means slidably connecting the other section to said frame, tension means between the last named section and the frame, knives carried by said sections, guide tubes in the frame to have a string from a supply threaded therethrough and having their inner ends relatively spaced, feed rollers engaging the string between the inner ends of the tubes, a pawl and ratchet mechanism between one. of the feed rollers and one of the sections to impart rotation to the last named feed roller to cause the string to be fed outwardly of the holder after each severance of the string by the blades, one of said tubes having a slot, and a spring pressed pawl carried by the frame and engaging the string through the slot to prevent reverse movement of the string relative tothe holder.

3. A string cutter comprising a casing, an operating medium yieldably connected to the casing and forming aclosure for the latter, a cutting blade carried by said operating medium, a second cutting blade carried by the casing to cooperate with the first cutting blade in severing a string, a sectional guide tube carried by the casing and receiving and directing the string to said blades and having the sections thereof spaced, feed elements engaging the string between the spaced sections of the tube, and means actuating the feed elements by the movements of the operating medium.

4. A string cutter comprising a casing, an operating medium yieldably connected to the casing and forming a closure for the latter, a cutting blade carried by said operating medium, a second cutting blade carried by the casing for cooperating with the first cutting blade in severing a string, a guide tube carried by the casing to receive and direct the string to the blades and including sections arranged in the same plane with each other and spaced, rotatable feed elements carried by the casing and engaging the string between the sections of the tube, and means operating the feed elements by the movements of the operating medium to cause severance of the string by the blades and advance. of the string to the blades after each severance, and a tension means carried by one of the sections of the tube to engage the string to prevent a reverse movement thereof and away from the blades.

5. A string cutter comprising a portable casing of substantially rectangular shape, a tension operating medium slidably secured to the casing and capable of self-movement in one direction and forming a closure for said casing, a cutting blades carried by said operating medium, a second cutting blade carried by the casing to cooperate with the first cutting blade in severing a string, a guide tube in the casing for directing the string to the cutting blades and including spaced sections, feed elements engageable with the string between the sections of the tube, and ratchet means between the-feed elements and the operating medium.

In testimony whereof I affix my signature.

EMIL H. STRATTON. 

